| 摘要 |
PROBLEM TO BE SOLVED: To provide an agricultural perforated film which holds the heat- insulating property of an agricultural film (especially a lining film), does not store water thereon, does thereby not damage crops, and can be used for a large green house, too, and to provide a method for producing the film. SOLUTION: This perforated film for agriculture, characterized by disposing a perforated portion having 2 to 5 mm diameter holes perforated at distances of 10 to 20 cm in a width of 20 to 100 cm from at least one lateral side end in the longitudinal direction of the synthetic resin film in a total hole area of 5 to 20% based on the total area of the film. The method for producing the agricultural perforated film, characterized by disposing one or more slits in a non-perforated portion adjacent to a perforated portion, before, after or when the perforated portion is disposed in a double-folded cylindrical film obtained by an inflation forming method and then opening the cylindrical film from the slits to form one or more of the films.
|
